Tellurian.



m. 710,454. Patented on. 7, 1902 C. S. HENDERSON. TELLUBIAN.

(Application fllod. Oct. 80, 1901-) (Io mm.) I 2 Sheets-Sheet I.

No. 7I0,454. Patented Oct. 7, I902.

C. S. HENDERSON.

TELLUBIAN.

(Applicltion M Oct. 30, 1901.) (lo Nodal.) 2 Sheets-Sheet 2.

UNITED STATES PATENT OFFICE.

CHARLES S. HENDERSON, OF ELKHART, INDIANA.

TELLURIAN.

SIPEOIFICATION formingpart of Letters Patent N 0. 710,454, dated October 7, 1902.

Application filed October 30, 1901. Serial No. 80,576. (No model.)

To all whmn it may concern:

Beitknown that LCHARLEs S. HENDERSON, a citizen of the United States, and a resident of Elkhart, county of Elkhart, and State of Indiana, have invented certain new and useful Improvements in Tellurians, of which the following is a specification.

The object of the invention is to provide a machine with simplified mechanism which will illustrate the polar, axial, and orbital motions of the earth in her revolutions around the sun, the movement and phases of the moon, including apogee and perigee limits, and other phenomena occurring in that branch of study for the elucidation of which such an instrument is employed.

The invention consists in the construction and arrangement of parts hereinafter described, and particularly pointed out in the claims.

I have illustrated a tellurian constructed in accordance with my invention in the accompanying drawings, in which-- Figure 1 is a plan view with the globes removed. Fig. 2 is a side elevation. Fig. 3 is a central vertical section with parts broken away; and Fig. 4 is a detail sectional view, being a section on line A 4 of Fig. 3.

In the drawings the letter D designates a suitable table, base, or stand upon which the various parts are supported. Upon this is mounted a vertical cylinder G, which, if desired, may be slightly enlarged at its upper end, forming an internal flange or shoulder, upon which is supported a plate or disk d, as clearly seen in Fig. 3. The top of the cylinder is closed by a cap E, from which radiates a plurality of arms or spokes Cb. At their outer ends these spokes carry two circular stationary racks A and B, the latter being in the same plane with the spokes and the former below and of somewhat smaller diameter, as shown.

An annular groove or channel is formed in the outer periphery of the cylinder 0, in which is mounted a rotatable ring H, the inner periphery of which is toothed to form a circular rack, while its outer periphery is provided with sprocket-teeth. A shaft b is journaled centrally of the cylinder 0 and is operated by crank a, shaft 0, and bevel-gears c and 0 This shaft carries a gear-wheel F,

which engages with idler-gears G G journaled on studs or axles G, projecting from the under side of the plate d. These gears project through openings or cut-away portions in the sides of the cylinder and mesh with the internal teeth of the ring H, wherebysaid ring may be rotated by the turning of the crank. A yoke formed of upper and lower plates I, with a space between for the ring H, is rotatably supported upon a flange or bearing-ledge e, secured to the outer periphery of the cylinder, and oppositely-projecting arms J J are carried by this yoke.

Arm J, as shown at the left of Fig. 3, carries a vertically-extending tube or bearing K, within which is journaled a verticalshaft L, carrying at its lower end a sprocket-wheel M and at its upper end a bevel-gear N, meshing with a corresponding bevel-gear R, secured to the inclined shaft R of the earthglobe R.

The shaft R is journaled in a box or casing mounted on the upper end of a tube or sleeve 0, which is journaled upon the sleeve K and rests at its lower end upon the end of arm J. The sleeve 0 is provided with a circular horizon tal disk or wheel S, having sprocket-teeth, and a sprocket-chain n passes around this wheel and also around a stationary rack or gear f, formed upon or secured to the outer periphery of the cylinder 0. A third sleeve T encircles the sleeve 0, resting at its lower end on the disk or wheel S, and this sleeve T carries a gear-wheel U, which meshes with the stationary rack 13. A yoke h is pivotally connected to this sleeve at the upper end and has an upwardly-turned projection h, adapted to engage a socket in the end of an arm 72, which carries at its upper end a moon-globe h A second yoke i is pivoted to the sleeve T below the gear U and has an outwardly-extended portion or arm t", which rests upon an inclined or cam track 70, secured to the disk or wheel S. A link j connects the yokes h and 11, "so that they move in unison on their pivots.

The arm J (see the right of Fig. 3) carries a sprocket-wheel V in line with ring H and wheel M. This wheel V is fast on a shaft 1), which also carries a gear w, meshing with a gear m, carried by a shaft Z, journaled in a bearing on on the outer end of the arm J.

At the upper end of the shaft 1 is a gear Y, which engages with the circular rack A, secured to the under side of rack B and arms or spokes, as shown.

The outer ends of the arms J and J are rabbeted to receive the gears M and V, as shown, removable plates M and Y holding the gears in place. A bearing-screw M may be provided in plate M, by which shaft L may be vertically adjusted to secure proper mesh of the gears N and R.

A sun-globe O is mounted upon the cover of cylinder 0, which may contain an electric lamp g, to which current may be conveyed by a wire g.

A sprocket-chain 0 passes around wheels M and V and engages with the teeth of the circular ring H, as clearly indicated in Fig. 1.

The operation of the parts thus described is as follows: The operation of the crank rotates the shaft 1) and through gear F and idlers G rotates the ring H. This causes the chain 0 to travel and to actuate the wheels M and V. The rotation of Wheel M through shaft L and gears N and R causes the earthglobe to rotate upon its axis. At the same time the rotation of wheel Vthrough gearing W X drives gear Y, and as this last-named gear is in mesh with the stationary rack A the arms J and J are swung around, causing the earth-globe to revolve around the sunglobe. The gear or pinion U by its engagement with the stationary rack A causes the arm 71,2 and moon-globe to be swung around the earth, while by the chain n passing around gear or rackfthe Wheel S, with its cam-track, is rotated, causing arm z' to raise and lower the moon-globe through the connections described.

It will of course be understood that the teeth of the sprockets and gears are preferably so apportioned that three hundred and sixty-five and one-fourth rotations of the arbor b will cause the earth-globe to make one revolution around the sun-globe and three hundred and sixty-five and one-fourth rotations on its axis. Further, the time occupied by the moon-globe in its revolution around the earth-globe will bear the same proportion to the time of the orbital transit of the earthglobe as twenty-nine days, eleven hours, four minutes, and twenty-five seconds bears to three hundred and sixty-five and one-fourth days.

It Will be understood that I do not limit myself to the precise arrangement of gears and chains, as belt-gearing or gear-wheels may be used, as desired, without departing from the spirit of my invention.

Having thus described my invention,what I claim is 1. A tellurian comprising a central support for a suuglobe, a stationary rack carried thereby, oppositely-extending arms mounted to rotate on said central support, an earthglobe rotatably mounted at the extremity of one of said arms, a gear journaled at the end of the other arm meshing with said stationary rack, a driving-wheel carried by the central support, connections therefrom to said gear for rotating the same to swing the arms and connections from said driving-wheel to the earth-globe for rotating the same as the arms swing around the central support, substantially as described.

2. A tellurian comprising a central support, a stationary rack carried thereby, oppositelyextending arms mounted to swing on said central support, an earth-globe rotatably mounted at the extremity of one arm, a gear-wheel journaled at the extremity of the other and engaging the stationary rack, a, toothed ring encircling the central support with means for operating the same, sprockehwheels journaled at the opposite ends of said arms, a chain passing around said sprockets and engaging said ring, driving connections from one of said sprockets to the earth-globe,driv ing connections from the other sprocket and the gear meshing with the stationary rack, and means for rotating said ring, substantially as described.

3. A tellurian comprising a hollow central support, a stationary circular rack carried thereby, a sprocket-ring encircling said support and rotatably mounted thereon, said ring having internal gear-teeth, a gear within said support and projecting through an opening therein and engaging the internal teeth of the ring, arms mounted to swing around said support and projecting in opposite directions therefrom, sprocket-wheels at opposite ends of said arms, a chain passing around said sprockets and sprocket-ring, an earth-globe rotatably mounted on the end of one arm having operating connections to the sprocket thereon, and a gear journaled in the end of the other arm engaging said stationary rack and having operating connections to the corresponding sprocket-wheel, substantially as described.

4. A tellurian com prisin ga cylindrical central support, a stationary rack carried thereby, arms mounted to swing on said support and extending in opposite directions,an earthglobe rotatably mounted at the end of one of said arms, a gear journaled at the end of the other arm engaging said rack, a rotatable ring encircling said cylindrical support and having internal teeth, idleregears journaled within said support and engaging said internal teeth through openings therein, a driving-shaft having connections for operating said idler-gears, driving connections whereby the rotation of said ring operates the earthglobe, and driving connections whereby the rotation of said ring operates the gear engaging the stationary rack, substantially as described.

5. A tellurian comprisinga central support, stationary circular racks carried thereby, oppositely extending arms on said support mounted to swing in unison thereon, a driving wheel or ring H rotatable on said support with means for operating the same, an earth-globe rotatably mounted on the end of one of said arms with connections whereby the same is rotated on its axis by the rotation. of the wheel or ring H, a gear journaled at the end of the other arm and engaging one of said racks, connections whereby it is rotated by said wheel or ring H, a moon-globe mounted on an arm adapted to swing around said earth-globe, and a gear connected with said arm and engaging the other stationary rack, substantially as described.

6. A tellurian comprising a central support, an arm carried thereby having a tubular su pport or bearing K at its outer end, a tubular sleeve 0 encircling said tubular bearing, a bearing-bracket carried on the upper end of said sleeve 0, an earth-globe rotatably mounted in said bracket, a shaft within the bearing K having connections for rotating the earth-globe and the bracket thereon, a moonglobe mounted to swing around said earthglobe with means for swinging it, means for raising and lowering the moon-globe as it swings, and means for swinging the arm around its central support, substantially as described.

7. A tellurian comprising a support for a sun-globe, an arm mounted to swing around the same, a tubular bearing K at the outer end of said arm, a sleeve 0 encircling the same, a bracket carried by said sleeve 0, an earthglobe journaled in said bracket upon an inclined axis, means for rotating said sleeve 0, a shaft within the bearing K with means for operating it, said shaft having operating connections with the earth-globe, an outer sleeve T encircling the sleeve 0 with means for rotating it, a yoke pivotally connected to sleeve T, a moon-globe supported thereby, a disk carried by sleeve 0, an inclined track or flange carried by said disk, an arm pivoted to the sleeve T and bearing on said flange, and a link connecting said arm with the moon-globe-supporting yoke, sub stantially as described.

8. In atellurian,a hollow central support, a sun-globe mounted on the support, a sprocket H carried by said support, a yoke having two arms carried on the support, racks A and B supported by said support, small sprocketwheels on the ends of the arms of said yoke, driving connection between said sprockets and sprocket-wheel H, a vertical support K upon one of said arms, a shaft L carried within said support and fixed to small sprocket M, an outer sleeve 0 encircling the support K, an earthglobe supported on said sleeve 0, a sleeve T encircling sleeve 0, a moon-globe pivoted on sleeve T, means for rotating the earth-globe, and a gear on sleeve T operated by the rack 13 for rotating said moon-globe around the earth and means forgiving a vertical movement to the said moon-globe while being rotated, a gear on the other yoke-arm meshing with rack A, and connections whereby the rotation of the sprocket on said arm operates said gear,substantially as described.

9. A tellurian comprisinga central support for a sun-globe, a circular rack carried thereby, an arm mounted to swing around said support and carrying a vertical bearing shaft or member at the outer end thereof, a sleeve 0 encircling said bearing and carrying a disk having sprocket-teeth on its periphery, a bracket carried by said sleeve, an earth-globe journaled in said bracket, a sleeve T encircling the sleeve 0 and having a gear meshing with the stationary rack, a moon-globe supporting arm pivotally connected with sleeve T, stationary sprocket-teeth carried by the central support, a sprocket-chain encircling said teeth and the teeth on the disk of sleeve 0, an inclined flange on said disk, an arm bearing on said flange and connected with the moon-supporting arm, means for swinging the main arm around its central support and meansfor rotating the earth globe upon its axis,substantially as described.

In testimony whereof I have signed my name to this specification in the presence of subscribing witnesses.

CHARLES S. HENDERSON. \Vitnesses:

EMILY HENDERSON, RALPH SNYDER. 

